Iron-based copper for treating organic sewage and sewage treatment method

A technology of organic sewage and iron-based copper, applied in water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of high amount of invalid copper consumables and low efficiency of electrochemical degradation, and achieve Effect of improved discharge efficiency and high reductive decolorization ability

Inactive Publication Date: 2013-01-02
WUHAN COMEON ENVIRONMENT ENG
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Problems solved by technology

With the help of this material and the fixed bed reaction process, the electrochemical degradation efficiency of ordinary granular iron-carbon-based materials and granular iron-copper-based materials on organic pollutant macromolecules in sewage is successfully solved in the current sewage treatment process. low, and the high consumable amount of ineffective copper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] 1) Preparation of iron-based copper material:

[0029] a. At a certain temperature, soak a certain amount of cast iron chips (powder) in an inorganic alkali such as 10% sodium hydroxide, or a basic salt solution such as sodium carbonate, and filter it out. Among them, the temperature range is 0-100°C; the amount of cast iron chips is limited to be submerged in lye; the concentration range of lye is 5-40%; the soaking reaction time is 10-130min;

[0030] b. Wash the filtrate 2-3 times with water.

[0031] c. Soak and activate the degreased cast iron shavings in an inorganic medium strong acid at a given temperature, and filter out. Among them, the given temperature range is 5-50°C; the strong acid in the inorganic is sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid, etc.; the acid concentration is 5-45%; the soaking reaction time is 1-45min.

[0032] d. The activated cast iron chips are washed 2-3 times with water and filtered out.

[0033] e. Then add i...

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Abstract

The invention relates to an iron-based copper high-efficient microelectrolytic material which contains a lot of nonuniform iron-copper microelectrode primary batteries and is formed by coating copper on cast iron granular carrier surfaces in a crystal grain form by a chemical conversion method. When organic sewage flows through a fixed bed reactor formed by the material, the reaction efficiency is controlled by the flow rate. With the material and the fixed bed reaction technology, the problem of low electrochemical degradation efficiency of organic pollutant macromolecules in sewage by common granular iron-carbon microelectrolytic materials and granular iron-copper microelectrolytic materials in current sewage treatment process is solved.

Description

[0001] technical field [0002] The invention belongs to the technical field of sewage treatment, and in particular relates to an iron-based copper for treating organic sewage and a sewage treatment method. [0003] Background technique [0004] Sewage treatment micro (internal) electrolysis is an electrochemical method that utilizes the self-discharge of a micro-battery formed between certain material particles with different electrode potentials to decompose pollutant molecules in sewage. It can be used for leather, Purification and treatment process of industrial wastewater such as oil field, printing and dyeing, chemical industry, etc. [0005] In the sewage treatment industry, the current internal electrolysis method is iron-carbon primary battery substrate, and the electromotive force generated between the two electrodes of the micro-battery is relatively small compared with the iron-copper-based primary battery, so the degradation of organic pollutant molecules less...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461
Inventor 罗逸文志敏
Owner WUHAN COMEON ENVIRONMENT ENG
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